#!/bin/sh -e

# TODO: need comments

output="$1"


case "$QEMU_ARCH" in
  x86_64) disk=sda ; partition=sda ; netmodule=e1000 ; console=ttyS0 ;;
  x86) disk=sda ; partition=sda ; netmodule=e1000 ; console=ttyS0 ;;
  arm) disk=mmcblk0 ; partition=mmcblk0p ; netmodule=virtio_net ; console=ttyAMA0 ;;
  aarch64) disk=mmcblk0 ; partition=mmcblk0p ; netmodule=virtio_net ; console=ttyAMA0 ;;
esac

if $USE_VIRTIO_DISK ; then
  disk=vda
  partition=vda
fi

if $USE_VIRTIO_NETWORK ; then
  netmodule=virtio_net
fi

s6-hiercopy layout/initramfs $output/initramfs
find "$output/initramfs" -type f -name .empty -size 0c -exec s6-rmrf {} \;
s6-hiercopy layout/rootfs $output/rootfs
find "$output/rootfs" -type f -name .empty -size 0c -exec s6-rmrf {} \;
s6-hiercopy layout/rwfs $output/rwfs
find "$output/rwfs" -type f -name .empty -size 0c -exec s6-rmrf {} \;
s6-hiercopy layout/userfs $output/userfs
find "$output/userfs" -type f -name .empty -size 0c -exec s6-rmrf {} \;
s6-hiercopy layout/stagingfs $output/stagingfs
find "$output/stagingfs" -type f -name .empty -size 0c -exec s6-rmrf {} \;

if $USE_GRAPHIC ; then
  console=tty1
  echo "load-essential-modules" >> $output/rootfs/etc/s6-rc/source-base/ok-local/contents
fi

timeout=${S6RC_TIMEOUT}
buildtime=$(s6-clock)

hostarch=$(s6-echo $TRIPLE | cut -f1 -d-)
sed -i -e "s/%%HOSTNAME%%/lh-$hostarch/g" $output/rootfs/etc/s6-rc/source-base/00/up $output/rootfs/etc/s6-linux-init/run-image/service/s6-linux-init-early-getty/run $output/rootfs/etc/motd $output/rootfs/etc/issue.net $output/rootfs/root/.execline-shell $output/userfs/home/guest/.execline-shell
sed -i -e "s/%%CONSOLE%%/$console/g" $output/rootfs/etc/s6-linux-init/run-image/service/s6-linux-init-early-getty/run
sed -i -e "s/%%NETMODULE%%/$netmodule/g" $output/rootfs/etc/s6-rc/source-base/init-eth0/up
sed -i -e "s/%%RCTIMEOUT%%/$timeout/g" -e "s/%%BUILDTIME%%/$buildtime/g" $output/rootfs/etc/rc.init


if $USE_DHCP ; then
  eth0_service=udhcpc-eth0-pipeline
else
  eth0_service=static-eth0
fi
# echo ${eth0_service} > $output/rootfs/etc/s6-rc/source-base/activate-eth0/contents

for i in $output/initramfs/init $output/rootfs/etc/s6-rc/source-base/mount-*/* ; do
  sed -i -e "s/%%DISK%%/$disk/g" -e "s/%%PARTITION%%/$partition/g" $i
done

chown -R root.root $output/initramfs $output/rootfs $output/rwfs $output/userfs

s6-mkfifo -m 0600 -- $output/rootfs/etc/s6-linux-init/run-image/service/s6-svscan-log/fifo || s6-true

while read file user group perms ; do
  if s6-test -n "$file" -a "$file" != "#" ; then
    $output/build-build/command/s6-chown -u $user -g $group -- $output/$file
    $output/build-build/command/s6-chmod $perms $output/$file
  fi
done < sub/layout/permissions